Home / 3,183.40-4,393.35-1,767.43

Finding the Fourth Proportional to 3,183.40, 4,393.35 and 1,767.43

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Solution

The fourth proportional to 3,183.40, 4,393.35 and 1,767.43 is: 2,439.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,183.40 : 4,393.35 = 1,767.43 : x
  2. Step 2: Convert to fraction form
    3,183.40/4,393.35 = 1,767.43/x
  3. Step 3: Cross multiply
    3,183.40x = 4,393.35 × 1,767.43
  4. Step 4: Simplify right side
    3,183.40x = 7,764,938.59
  5. Step 5: Solve for x
    x = 7,764,938.59/3,183.40
  6. Step 6: Final answer
    x = 2,439.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.